package customExercise;

import cn.hutool.bloomfilter.bitMap.BitMap;
import cn.hutool.core.thread.ThreadUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.ReflectUtil;
import knowlodges.java8Stream.Student;

import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Random;
import java.util.concurrent.*;

/**
 * @author:Clarence
 * @date 2022/4/6 9:23
 * @motto Practice is the sole criterion for testing truth.
 */

public class CallableThreadTest implements Callable<Integer> {
    public static void main(String[] args) {
        CallableThreadTest ctt = new CallableThreadTest();
        FutureTask<Integer> ft = new FutureTask<>(ctt);
        for (int i = 0; i < 100; i++) {
            System.out.println(Thread.currentThread().getName() + " 的循环变量i的值" + i);
            if (i == 20) {
                new Thread(ft, "有返回值的线程").start();
            }
        }
        //try {
        //    System.out.println("子线程的返回值：" + ft.get());
        //} catch (InterruptedException e) {
        //    e.printStackTrace();
        //} catch (ExecutionException e) {
        //    e.printStackTrace();
        //}
    }

    @Override
    public Integer call() throws Exception {
        int i = 0;
        for (; i < 100; i++) {
            System.out.println(Thread.currentThread().getName() + " " + i);
        }
        return i;
    }
}

